Low pressure Test

Perform test on both circuits. Circuit 1 is front axle and circuit 2 is rear axle.

1. Release pedal support until test pressure in brake system is 28 to 71 psi (2 to 5 bar). Car and tester must remain perfectly still as movement will distort test.
2. Pressure should remain constant during 5 minute test.
3. If pressure drops considerably, inspect all rubber parts.
4. Bleed brake calipers and wheel brake cylinders after finishing test. See BLEEDING BRAKE SYSTEM  .